It has to be human and it has to be alive, that's all I've figured out. Animal meat doesn't work.

[ Pryce's experiment works but that's not an option right now. Roman listens to the list of various monsters and finds himself wondering if they're all just plain evil, or if they've got free will too. He's a monster, after all, and he doesn't want to kill people. That's part of his problem... maybe they don't have a choice? Maybe the demigods didn't have a choice... he can just ask, probably, Will seems pretty open. ]

Why do you have to take each other out?

[ New place, new resources... but really he just wants to go home and finish the experiments so he can be human. He had a solution. He had a solution and now it's out of reach. ]

Maybe..? I guess there could be someone.